Mass add more thumbs per gallery

[happydg]

Hello,

Let's say i have added all galleries with one thumb. The script has tested all thumbs already. I want to row massedit galleries so i can add the other 9 thumbs per gallery.

I went to row massedit page, but i can't find the Thumb pattern.

Thank you.

[admin]

rotation - import

url|thumb

check dupes = no